CN210574777U - Display panel and display device - Google Patents

Abstract

The utility model provides a display panel and display device, display panel includes the flexible substrate, the flexible substrate includes display element and the unit of bending that is connected and can bend the back of display element with the display element including multiplexer, chip and the flexible circuit board that sets gradually along the downward direction of keeping away from the position of bending on the unit of bending, the flexible circuit board is including the earthing terminal that can provide ground signal, keeping away from of multiplexer the surface of flexible substrate sets up the metal shielding layer and is in the metal shielding layer with the insulating layer that is used for the insulation isolation that sets up between the multiplexer, the metal shielding layer is connected the earthing terminal is in order to shield signal interference. The display panel and the display device provided by the disclosure can shield electromagnetic signal interference, improve the service performance, and reduce or not coat wave-absorbing materials, thereby reducing the cost.

Description

Display panel and display device

Technical Field

The present disclosure relates to the field of display, and in particular, to a display panel and a display device.

Background

With the development of display industry, the overall screen gradually becomes trend, the panel process gradually changes from COF design (Chip On Flex or Chip On Film, often called as flip Chip Film, and the technology of packaging a Chip On a flexible circuit board by using a soft additional circuit board as a packaging Chip carrier and connecting the Chip with a flexible substrate circuit) to COP design (Chip On Pi, the back plate of a flexible OLED screen is not the specific glass of an LCD, and the used material is similar to the flexible board of the FPC, and the back plate can be flexible and can be curled at will). In which, the COF process transfers the IC chip from the panel to the bus line, and the IC can be bent to the back side along with the bus line, but the manufacturing cost of the process is higher. With the development of OLED flexible screens, the flexibility of the display screen enables COP technology to be realized, and flexible materials enable ICs to be directly folded backwards, so that narrow frames can be achieved to a greater extent, and a full-face screen is realized.

After the module section is complete, the IC drive is started, and the multipath selector signal and the complete machine rear antenna signal interfere with each other to generate adverse effects. Although this adverse effect can be weakly mitigated by the wave absorbing material applied at the bend location, it also increases the cost of the product.

SUMMERY OF THE UTILITY MODEL

The display panel can shield signal electromagnetic interference, improve service performance, and can replace wave-absorbing materials, thereby reducing cost.

Another object of the present disclosure is to provide a display device including the above display panel.

In order to achieve the above object, the present disclosure provides a display panel including a flexible substrate, the flexible substrate includes a display unit, a bending unit connected to the display unit and capable of bending to a back surface of the display unit, the bending unit includes a multiplexer, a chip and a flexible circuit board sequentially disposed along a direction away from a bending position, the flexible circuit board includes a ground terminal capable of providing a ground signal, a metal shielding layer is disposed on a surface of the multiplexer away from the flexible substrate, and an insulating layer for insulation is disposed between the metal shielding layer and the multiplexer, and the metal shielding layer is connected to the ground terminal to shield signal interference.

In some embodiments, the area of the orthographic projection of the metal shielding layer on the flexible substrate is larger than the area of the orthographic projection of the multiplexer on the flexible substrate and covers the orthographic projection of the multiplexer on the flexible substrate.

In some embodiments, the metal shielding layer is electrically connected to the ground terminal through a conductive line.

In some embodiments, the metal shield layer is formed of a metal clad layer with a flat layer between the metal shield layer and the multiplexer.

In some embodiments, the display panel includes a first source-drain metal layer and a second source-drain metal layer, the first source-drain metal layer and the second source-drain metal layer are connected in parallel, a passivation layer and a flat layer are provided between the metal shielding layer and the multiplexer, and the metal shielding layer is a part of the second source-drain metal layer.

In some embodiments, the flexible substrate further includes a touch metal layer disposed on the flexible substrate and connected to the ground terminal, and the metal shielding layer is a metal layer of the touch metal layer.

In some embodiments, the metal shielding layer is a first touch metal layer, and the film layer between the first touch metal layer and the multiplexer includes a first insulating layer, an encapsulation layer, and an interlayer dielectric layer.

In some embodiments, the metal shielding layer is a second touch metal layer, and the film layer between the second touch metal layer and the multiplexer includes a first insulating layer, a second insulating layer, an encapsulation layer, and an interlayer dielectric layer.

In some embodiments, the multiplexer includes a first source drain metal layer.

In some embodiments, the multiplexer further comprises an active layer and a gate layer, and the first source-drain metal layer is electrically connected with the active layer.

In some embodiments, a test structure is disposed on the bending unit, the test structure is disposed between the bending position and the metal shielding layer, and the test structure is electrically connected with the display unit for testing the display unit.

A second aspect of the present disclosure provides a display device including the display panel.

Compared with the prior art, this disclosed beneficial effect lies in:

1. the bending unit of the display panel comprises a metal shielding layer arranged on the surface, far away from the flexible substrate, of the multiplexer and an insulating layer arranged between the metal shielding layer and the multiplexer and used for insulation and isolation, wherein the metal shielding layer is connected with a grounding end to shield signal interference, so that a shielding function is realized, and the problem of mutual interference of the multiplexer and a module antenna signal is avoided;

2. the display panel disclosed by the embodiment of the disclosure solves the problem of electromagnetic signal interference through the metal shielding layer and the insulating isolation layer, improves the service performance of the product, and reduces or does not coat wave-absorbing materials, thereby reducing the cost;

3. the display panel has good anti-interference capability by adopting a double-SD structure, the attenuation of signals is less in the transmission process, and the uniformity of picture display is good.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic partial structure diagram of a display panel according to the present disclosure.

Fig. 2 is another partial structural schematic diagram of the display panel of the present disclosure.

Fig. 3(a) is a schematic diagram of specific film layers between the metal shielding layer and the multiplexer of the display panel according to embodiment 1 of the disclosure.

Fig. 3(b) is a schematic diagram of specific film layers between the metal shielding layer and the multiplexer of the display panel according to embodiment 2 of the disclosure.

Fig. 3(c) is a schematic diagram of specific film layers between the metal shielding layer and the multiplexer of the display panel according to embodiment 3 of the disclosure.

Fig. 3(d) is a schematic diagram of specific film layers between the metal shielding layer and the multiplexer of the display panel according to embodiment 4 of the disclosure.

Reference numerals:

1-a display unit; 2-a bending unit; 3-grounding end; 4-tracking signal terminal; 5-touch ground; p-bending position; 21-a multiplexer; 22-a chip; 23-a flexible circuit board; 24-a test structure; 25-a metallic shielding layer; 26-a first insulating layer; 27-touch metal layer; 28-a second insulating layer; 29-an encapsulation layer; 30-interlayer dielectric layer.

Detailed Description

In order to make the technical solutions of the present disclosure better understood, the following embodiments of the present disclosure are described in further detail with reference to the accompanying drawings and specific embodiments, but the present disclosure is not limited thereto.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

The present disclosure provides a display panel, including a flexible substrate, where the flexible substrate includes a display unit 1 and a bending unit 2 connected to the display unit 1 and capable of bending to a back of the display unit 1, the bending unit 2 includes a multiplexer 21, a chip 22 and a flexible circuit board 23 sequentially arranged along a direction below a bending position P, a pin extending from the display unit 1 is connected to a corresponding pin of the chip 22 through the multiplexer 21, the flexible circuit board 23 includes a ground terminal 3 capable of providing a ground signal, the flexible circuit board 23 is connected to an internal working voltage VDD and a common ground voltage VSS, a metal shielding layer 25 and a first insulating layer 26 arranged between the metal shielding layer 25 and the multiplexer 21 and used for insulating isolation are arranged on a surface of the multiplexer 21 away from the flexible substrate, the metal shielding layer 25 is connected to the ground terminal 3 to shield signal interference. Wherein, in some embodiments, the insulating layer comprises a passivation layer PVX and/or a planarization layer PLN, or the like.

In the above technical solution, the surface of the multiplexer 21 away from the flexible substrate is provided with the metal shielding layer 25 and the first insulating layer 26 for insulating and isolating arranged between the metal shielding layer 25 and the multiplexer 21, and the metal shielding layer 25 is connected to the ground terminal 3 through a wire, so that a shielding function is realized, the problem of mutual interference between the multiplexer 21 and a module antenna signal is avoided, the use performance of a product is improved, and a wave-absorbing material can be replaced, thereby reducing the cost.

In order to achieve a better shielding function, in some embodiments, the area of the orthographic projection of the metal shielding layer 25 on the flexible substrate is larger than the area of the orthographic projection of the multiplexer 1 on the flexible substrate and covers the orthographic projection of the multiplexer 1 on the flexible substrate.

Example 1

As shown in fig. 1, in embodiment 1 of the present disclosure, the multiplexer 21 is disposed below the bending position P and adjacent to the IC chip 22. By arranging the multiplexer 21 below the bending position P, the panel is folded to the back of the panel after bending, which makes the size design compact and the screen occupation large. In addition, the multiplexer 21 is disposed adjacent to the IC chip 22, so that interference in a signal transmission process can be reduced, output impedance can be reduced, signal attenuation can be reduced, and signal definition can be improved.

The multiplexer 21 is composed of a first source-drain metal layer SD1, and the like; the first source drain metal layer SD1 is Ti-Al-Ti in structure; the conductive coating has good conductivity and small impedance; the power consumption in the signal transmission process can be reduced, and the signal attenuation is reduced; the multiplexer 21 further includes an active layer source and a gate electrode gate, a gate insulating layer GI is disposed between the active layer source and the gate electrode gate, and the first source/drain metal layer SD1 is electrically connected to the active layer source.

The first source-drain metal layer SD1 passes through the entire panel as a signal line, and includes a Data signal line, a Goa signal line, an internal operating voltage VDD signal line, or a common ground voltage VSS signal line. The first source drain metal layer SD1 covers the first insulating layer 26 on the surface far away from the flexible substrate; the first insulating layer 26 is usually a PLN flat layer, and is made of an insulating material; the PLN flat layer is used for isolating the first source drain metal layer SD1 from the metal shielding layer 25 and preventing the first source drain metal layer SD1 from being short-circuited with the metal shielding layer 25; an LG metal coating layer is adopted as the metal shielding layer 25, and the LG metal coating layer covers the insulating layer, and fig. 3(a) shows a specific film layer schematic diagram between the metal shielding layer 25 and the multiplexer 21 in the embodiment of the disclosure.

As shown in fig. 1, the flexible circuit board 23(FPC) is connected to the internal operating voltage VDD of the display unit 1 and the common ground voltage VSS, and provides a pin (GND) of the ground terminal 3; the metal shielding layer 25 is connected to the flexible circuit board 23 through the pin of the ground terminal 3(GND) and is grounded to the flexible circuit board 23, so that signal distortion and disorder caused by noise interference due to ground potential difference can be effectively prevented.

The area of the orthographic projection of the LG coated metal layer on the flexible substrate is larger than the area of the orthographic projection of the multiplexer 1 on the flexible substrate, and the area covers the orthographic projection of the multiplexer 1 on the flexible substrate. The LG coated metal layer forms a shielding layer above the multiplexer 21, is grounded in the whole area and can absorb and shield signal interference of the module antenna signal to the multiplexer 21.

A test unit 24 is provided between the multiplexer 21 and the bending position P, and the test unit 24 is used for testing whether the display unit 1 can normally operate. The multiplexer 21 and the test unit 24 are designed in a bending unit, and are folded to the back of the panel after being bent, so that the size design is compact, meanwhile, the occupation ratio of the screen is large, the distance between an IC (chip) of the mobile terminal screen and the mobile terminal antenna is relatively close, and the whole screen can be realized to a greater extent.

After the display panel is assembled by the module section complete machine, a GND signal is input when the display panel is started, and signal interference between the multiplexer 21 and the module antenna can be shielded.

Example 2

As shown in fig. 1, in embodiment 2 of the present disclosure, the multiplexer 21 is disposed below the bending position P and adjacent to the IC chip 22; the multiplexer 21 comprises a first source drain metal layer SD1 covered on the surface; the multiplexer SD1 further includes an active layer source and a gate electrode gate, a gate insulating layer GI is disposed between the active layer source and the gate electrode gate, and the first source/drain metal layer SD1 is electrically connected to the active layer source.

The first source drain metal layer SD1 is Ti-Al-Ti in structure; the first source-drain metal layer SD1 penetrates through the entire display panel as a signal line, including a Data signal line, a Goa signal line, an internal working voltage VDD signal line, or a common ground voltage VSS signal line; a passivation layer and a flat layer are covered above the first source drain metal layer SD1 to serve as a first insulating layer 26; the first insulating layer 26 is usually made of an insulating flexible material.

Fig. 3(b) shows a specific film layer diagram between the metal shielding layer 25 and the multiplexer 21 according to the embodiment of the present disclosure. The difference from embodiment 1 is that a second source/drain metal layer SD2 is covered above the first insulating layer 26, and the metal shielding layer 25 is formed by the second source/drain metal layer SD 2.

As shown in fig. 1, the area of the orthographic projection of the metal shielding layer 25 on the flexible substrate is larger than the area of the orthographic projection of the multiplexer 21 on the flexible substrate and covers the orthographic projection of the multiplexer 21 on the flexible substrate.

The flexible circuit board 23(FPC) is connected to the internal operating voltage VDD of the display unit and the common ground voltage VSS, and provides a pin (GND) of the ground terminal 3. The second source-drain metal layer SD2 is connected to the pin (GND) of the flexible circuit board 23 through the ground terminal 3, and is grounded to the flexible circuit board 23. The second source-drain metal layer SD2 covers the entire upper side of the multiplexer 21, and penetrates the entire display panel as signal lines, including Data signal lines, Goa signal lines, internal operating voltage VDD signal lines, or common ground voltage VSS signal lines. The second source-drain metal layer SD2 is connected in parallel with the first source-drain metal layer SD 1.

A test unit 24 is arranged between the multiplexer 21 and the bending position P, and the test unit 24 is used for testing whether the display unit 1 can work normally.

After the display panel is assembled by the module section complete machine, a GND signal is input when the display panel is started, and signal interference between the multiplexer 21 and the module antenna can be shielded.

With the appearance of a full-screen display, the frame of the display panel is very narrow, the internal working voltage VDD signal line is narrowed, the impedance is increased, and the internal working voltage VDD signal is transmitted from the bottom end to the top end of the display panel, so that power loss is generated due to the increase of the impedance, voltage drop is generated, and the uniformity of picture display is affected. In the embodiment 2 of the present disclosure, the second source/drain metal layer SD2 is connected in parallel with the first source/drain metal layer SD1, so that the internal working voltage VDD signal line is widened, the impedance is reduced in the process of transmitting the internal working voltage VDD signal from the bottom end to the top end of the display panel screen, the voltage drop is reduced, and the uniformity of the image display can be ensured.

Example 3

As shown in fig. 2, embodiment 3 of the present disclosure includes a plurality of flexible metal layers disposed on the flexible substrate and capable of conducting signals, where the plurality of flexible metal layers includes at least one touch metal layer 27 connected to the FMLOC touch ground 5, and the metal shielding layer 25 is a part of the at least one touch metal layer 27. The forming mode of at least one touch metal layer 27 in this embodiment is suitable for a bendable display panel product with a single source/drain metal layer and containing an FMLOC flexible metal layer, and the specific structure is as follows:

as described above, the multiplexer 21 is disposed at a position adjacent to the IC chip 22, below the bending position P; the multiplexer 21 comprises a first source drain metal layer SD 1; the first source drain metal layer SD1 is in a structure of Ti-Al-Ti; the first source-drain metal layer SD1 is used as a signal line and penetrates through the whole panel, and comprises a Data signal line, a Goa signal line, an internal working voltage VDD signal line and a common ground voltage VSS signal line; a first insulating layer 26, a TFE packaging layer 29 and a TLD interlayer dielectric layer 30 are sequentially covered above the first source-drain metal layer SD 1; the first insulating layer 26 comprises a PLN planar layer; the interlevel dielectric layer 30 comprises an FMLOC Barrier flexible shield layer; the first insulating layer 26 is typically made of an inorganic insulating material.

A metal shielding layer 25 is covered above the interlayer dielectric layer 30; the Metal shielding layer 25 is a first touch Metal layer in the at least one touch Metal layer 27, and the first touch Metal layer is made of a flexible Metal TSP Metal a, abbreviated as TMA; fig. 3(c) shows a specific film layer diagram between the metal shielding layer 25 and the multiplexer 21 according to the embodiment of the present disclosure.

As shown in fig. 2, a flexible circuit board 23(FPC) connects the internal operating voltage VDD and the common ground voltage VSS of the display unit 1, the FMLOC Trace Signal terminal 4, and the FMLOC GND Signal touch ground terminal 5.

The first touch metal layer TMA is connected to the touch ground terminal 5 through a conductive line, so that signal distortion and disorder caused by noise interference due to ground potential difference can be effectively prevented; and the number of PINs (PIN) of the flexible circuit board 23(FPC) is reduced.

The area of the orthographic projection of the first touch metal layer TMA on the flexible substrate is larger than the area of the orthographic projection of the multiplexer 21 on the flexible substrate, and covers the orthographic projection of the multiplexer 21 on the flexible substrate. The first touch metal layer TMA forms a shielding layer above the multiplexer 21, and the first touch metal layer TMA is connected to the FMLOC GND Signal touch ground terminal 5, so that Signal interference of the module antenna Signal to the multiplexer 21 can be absorbed and shielded.

After the display panel is assembled by the module section complete machine, a GND signal is input when the display panel is started, and signal interference between the multiplexer 21 and the module antenna can be shielded.

Example 4

As shown in fig. 2, the display panel according to the embodiment of the disclosure adopts a second touch metal layer as the metal shielding layer 25 on the basis of the embodiment 3. The forming mode of the metal shielding layer 25 is suitable for a flexible and bendable panel product which is provided with a first source drain metal layer SD1 and a second source drain metal layer SD2 and contains FMLOC. The concrete structure is as follows:

as described above, the multiplexer 21 is disposed at a position adjacent to the IC chip 22, below the bending position P; the multiplexer 21 comprises a first source drain metal layer SD1 covered on the surface; the first source drain metal layer SD1 is in a structure of Ti-Al-Ti; the first source-drain metal layer SD1 is used as a signal line and penetrates through the whole panel, and comprises a Data signal line, a Goa signal line, an internal working voltage VDD signal line or a common ground voltage VSS signal line; covering a PLN flat layer above the first source drain metal layer SD1, and in some embodiments, covering a PVX inorganic passivation layer on the PLN flat layer, wherein the PLN flat layer and/or the PVX inorganic passivation layer are used as the first insulating layer 26; covering a second source drain metal layer SD2 above the first insulating layer 26; a second insulating layer 28 is arranged on the second source-drain metal layer SD2, the second insulating layer 28 is usually made of insulating materials, and sequentially includes a PVX inorganic passivation layer, a PLN1 first flat layer and a PLN2 second flat layer, a TFE encapsulation layer 29 is covered on the second insulating layer 28, and a TLD interlayer dielectric layer 30 is arranged above the encapsulation layer 29; the TLD interlayer dielectric 30 comprises an FMLOC Barrier flexible shield layer and an FMLOC ILD flexible dielectric; covering a Metal shielding layer 25 above the interlayer dielectric layer 30, wherein the Metal shielding layer 25 is a second touch Metal layer, and the second touch Metal layer is a flexible Metal TSP Metal B, referred to as TMB for short; fig. 3(d) shows a specific film layer diagram between the metal shielding layer 25 and the multiplexer 21 according to the embodiment of the present disclosure.

As shown in fig. 2, the second touch metal layer TMB covers the entire multiplexer 21, an area of an orthogonal projection of the second touch metal layer TMB on the flexible substrate is larger than an area of an orthogonal projection of the multiplexer 21 on the flexible substrate, and covers the orthogonal projection of the multiplexer 21 on the flexible substrate, and the second touch metal layer TMB forms a shielding layer above the multiplexer 21.

The flexible circuit board 23(FPC) is connected to the internal operating voltage VDD and the common ground voltage VSS of the display unit 1, the FMLOC Trace Signal terminal 4, and the FMLOC GND Signal touch ground terminal 5.

The second touch metal layer TMB is connected with the FMLOC GND Signal touch ground terminal 5 in a close way, so that Signal distortion and disorder caused by noise interference due to ground potential difference can be effectively prevented; and the number of PINs (PIN) of the flexible circuit board 23(FPC) is reduced. The second touch metal layer TMB is connected to the FMLOC GND Signal touch ground terminal 5, and can absorb and shield Signal interference of the module antenna Signal to the multiplexer 21, and can effectively prevent interference between signals, and therefore parasitic capacitance between metal layers is smaller than those of embodiments 1 to 3.

In order to ensure that the display unit 1 can function properly, in some embodiments, the bending unit 2 includes a test structure 24, the test structure 24 is disposed between the bending position P and the metal shielding layer 25, and the test structure 24 is connected with the display unit 1 for testing the display unit 1. The test structure of the panel, the multiplexer 21 and the like are designed in the bending unit, and the panel is bent and folded to the back of the panel, so that the size design is compact, meanwhile, the occupation ratio of the screen is large, the distance between an IC (chip) of the mobile terminal screen and the mobile terminal antenna is relatively close, and the whole screen can be realized to a greater extent.

The display panel disclosed by the invention is assembled by the module section complete machine, and then the GND signal is input, so that the signal interference between the multiplexer 21 and the module antenna can be shielded.

A second aspect of the present disclosure provides a display device including the display panel of embodiments 1 to 4 described above. In some embodiments, the display device includes a mobile phone, a computer, a tablet, a television, and the like. Since the display device comprises the display panel, the display device has at least or part of the beneficial effects of the display panel.

Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the disclosure with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, the subject matter of the present disclosure may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the disclosure should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are merely exemplary embodiments of the present disclosure, which is not intended to limit the present disclosure, and the scope of the present disclosure is defined by the claims. Various modifications and equivalents of the disclosure may occur to those skilled in the art within the spirit and scope of the disclosure, and such modifications and equivalents are considered to be within the scope of the disclosure.

Claims (12)

1. The utility model provides a display panel, its characterized in that, includes the flexible substrate, the flexible substrate include the display element, with the display element is connected and can bend the unit of bending at the back of display element the direction of keeping away from the position of bending on the unit of bending sets gradually multiplexer, chip and flexible circuit board, the flexible circuit board is including the earthing terminal that can provide the earthing terminal signal the keeping away from of multiplexer the surface of flexible substrate sets up the metal shielding layer and is in the metal shielding layer with the insulating layer that is used for insulating isolation that sets up between the multiplexer, the metal shielding layer is connected the earthing terminal is in order to shield signal interference.

2. The display panel of claim 1, wherein an area of an orthographic projection of the metal shielding layer on the flexible substrate is larger than an area of an orthographic projection of the multiplexer on the flexible substrate and covers the orthographic projection of the multiplexer on the flexible substrate.

3. The display panel according to claim 1, wherein the metal shielding layer is electrically connected to the ground terminal through a conductive line.

4. The display panel according to claim 3, wherein the metal shielding layer is formed of a metal over-film layer with a flat layer between the metal shielding layer and the multiplexer.

5. The display panel of claim 3, wherein the display panel comprises a first source drain metal layer and a second source drain metal layer, the first source drain metal layer and the second source drain metal layer are connected in parallel, a passivation layer and a planarization layer are arranged between the metal shielding layer and the multiplexer, and the metal shielding layer is part of the second source drain metal layer.

6. The display panel of claim 1, further comprising a touch metal layer disposed on the flexible substrate and connected to the ground, wherein the metal shielding layer is a metal layer of the touch metal layer.

7. The display panel of claim 6, wherein the metal shielding layer is a first touch metal layer, and a film layer between the first touch metal layer and the multiplexer comprises a first insulating layer, an encapsulation layer, and an interlayer dielectric layer.

8. The display panel of claim 6, wherein the metal shielding layer is a second touch metal layer, and a film between the second touch metal layer and the multiplexer comprises a first insulating layer, a second insulating layer, an encapsulation layer, and an interlayer dielectric layer.

9. The display panel of claim 6, wherein the multiplexer comprises a first source drain metal layer.

10. The display panel of claim 9, wherein the multiplexer further comprises an active layer and a gate layer, and wherein the first source drain metal layer is electrically connected to the active layer.

11. The display panel according to any one of claims 1 to 10, wherein a test structure is provided on the bending unit, the test structure being provided between the bending position and the metal shielding layer, and the test structure being electrically connected to the display unit for testing the display unit.

12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.

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